Answer: The percent (by weight) of carbon in nylon 6,6 is 63.7 %.
Explanation:
Molar mass of [tex]C_{12}H_{22}N_2O_2[/tex]:
[tex]12\times 12 u+22\times 1 u+2\times 14 u+2\times 16 u=226 u[/tex]
Total mass of carbon atoms =[tex] 12\times 12 u=144 u[/tex]
[tex]\% \text{of the carbon by weight}=\frac{144 u}{226 u}\times 100=63.71 \%[/tex]
The percent (by weight) of carbon in nylon 6,6 is 63.7 %.
